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The Terminator
Engine/Tuning
Installing TVS, S-hook not flush. Problem?
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<blockquote data-quote="TheFleshRocket" data-source="post: 15664726" data-attributes="member: 48535"><p>I asked VMP support:</p><p>"I have a related question—a couple of people on SVT Performance have said that they specifically leave out the S-hooks when installing TVSes, because the S-hook partially obstructs access to the intercooler which would probably result in higher IAT2s when in boost. Does installing the S-hook negatively affect IAT2? Is there any benefit to omitting the S-hook? "</p><p></p><p>Their reply:</p><p>"The S hook was not in our original blower design, but was incorporated in the Gen2 update. The s hook recirculated air through the bypass a second time, which actually brings down temps. You can use the blower without it, and there is no noticeable power loss at WOT."</p><p></p><p>I was initially under the impression that, under non-boost conditions, intake air that went though the supercharger bypass also bypassed the intercooler. And that the S-hook forced bypass air to actually go through the intercooler before entering the question. But now that I think about it more, I assume that all air that enters the combustion chambers has to go past the intercooler, so I must be incorrect. </p><p></p><p>But I don't really follow the VMP tech's explanation either--do you guys understand how the S-hook would cause intake air to go through the bypass a second time, and why that would help IAT2s?</p></blockquote><p></p>
[QUOTE="TheFleshRocket, post: 15664726, member: 48535"] I asked VMP support: "I have a related question—a couple of people on SVT Performance have said that they specifically leave out the S-hooks when installing TVSes, because the S-hook partially obstructs access to the intercooler which would probably result in higher IAT2s when in boost. Does installing the S-hook negatively affect IAT2? Is there any benefit to omitting the S-hook? " Their reply: "The S hook was not in our original blower design, but was incorporated in the Gen2 update. The s hook recirculated air through the bypass a second time, which actually brings down temps. You can use the blower without it, and there is no noticeable power loss at WOT." I was initially under the impression that, under non-boost conditions, intake air that went though the supercharger bypass also bypassed the intercooler. And that the S-hook forced bypass air to actually go through the intercooler before entering the question. But now that I think about it more, I assume that all air that enters the combustion chambers has to go past the intercooler, so I must be incorrect. But I don't really follow the VMP tech's explanation either--do you guys understand how the S-hook would cause intake air to go through the bypass a second time, and why that would help IAT2s? [/QUOTE]
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Installing TVS, S-hook not flush. Problem?
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